Portable electric lamp



F. M. ROSENFELD.

PORTABLE ELECTRIC LAMP.

APPLICATION FILED 050,13. 1917,.

mama May 31, 1921.

. UNlTEDSTATES PATENT OFFICE.

FRANCIS M. BOSENFELD, on NEW, YORK, N. Y., ASSIGNOR, BY MES E ASSIGNMENTS, TO DIAMOND ELECTRIC SPECIALTIES c0 1= 0E EWARK, NEW JERSEY, A

PORATION OF NEW JERSEY.

PORTABLE ELECTRIC LAMP.

Specification of Letters Patent. Pate t d lyl 31 1921 Application filed December 13, 1917. Serial N 0. 206,908.

To all whom it may concern;

Be it known that I, FRANors M. RosEN- FELD, acitizen of the UnitedStates, and a resident of the city, county, and State of New York, have invented an Improvement in Portable Electric Lamps, of which the following is a specification.

My invention relates to portable electric lamps of the type commonly called flashlights, in which a battery'and lamp carried by a casing have their circuit completed by means of suitable circuit-closing devices mounted uponthe casing.

In such lamps it is frequently desirable that two means of completing thecir'cuit be provided; that is, a means adaptedfor mo mentary operation and a means adapted for relatively continued operation. My invention aims to provide a portable electric lamp with circuit-closing means of .the general character described, which shall be so coordinated as to be independently operable, but nevertheless, inclosed in the same switch housing and cooperating therewith.

My invention also aims to provide circuitclosing mechanism which shall be rugged and simple and inexpensive to construct.

In the drawings, I have shown a top view of a portable electric lamp equipped with one form of my improved switching mechanism in Figure 1;

In Fig. 2, a sectional view thereof;

In Fig. 3, an. enlarged sectional view of the switching mechanism;.

In Figs. 4 and 5, a top and sectional view, respectively, a modification of the switching mechanism; and

In Figs. 6 and 7, a top and sectional view of another modification of the switching mechanism. I

Referring to the drawings, it will be seen that the casing 1, which may be of any suitable material and which is shown in the drawings as being of insulating material, contains a battery of a suitable size and character 2. One pole of the battery 3 is connected to the lamp &, the other pole of which is connected to thereflector 5. Reflector 5 is provided with a flange 6, which engages the edge of the casing so as to prevent current being conducted to any parts except those to which it is intended to conduct current. The reflector 5 is held in place by means of the lens 7, which is secured to the casing by means of the screw ring 8, which engages the screw collar 9 fastened to the caslng. The collar 9 does not project to the end of the casing, as clearly shown in Fig.

2, so as to prevent electrification of the collar 9 and rlng 8 and the consequent liability to accidental closing of the circuit. Connected to the reflector and preferably mounted on the inside of'the casing is a strip 10, which is connected to a contact 11, projecting through the casing 1. In some of the modifications, I have shown the contact 11 as being a single contact, but in the modification shown in Figs. 2 and 3, the'contaot 11 is-a double contact.

The battery 2 is held in place at the opposite end of the casing by means of the spring 12 which bears against the screw cover 13, which is in engagement with the screw collar 14. Screw collar 14 is connected by means of a rivet or other suitable connection 15 to a strip 16, preferably located inside of the casing l, which strip is connected to the switch housing 17. In the modification shown in Figs. 2 and 3, the strip 16 is connected to the housing 17 by means of the rivet 18 and the contacts 19 and 20. In the modifications shown in Figs. 4, 5, 6 and 7, the strip 16 is connected to the housing by means of one of the rivets 21, which connects the housing to the casing.

Referring to the modification of Figs. 2 and 3, it will be seen that the housing 17 is provided with two contacts; one a depressible contact 22, which is normally held against the inside of the upper surface of the housing 17 and is adapted to be actuated by means of button 23, to bring the contact into contact with contact 11, carried by the casing 1, and the other a sliding contact 2 1, which is adapted to be moved longitudinally of the casing by means of a thumb piece 25 mounted outside of the casing, to bring the contact 24. into contact with the contact 11, carried by the casing 1.

In the modification shown in Figs. 2 and 3, the thumb piece 25 is provided with two depending ears, which project through slots 26 in the housing and are bent toward one another and under the contact 24, to hold it in place. This construction. also holds the contact 22 in place against the upper side of the housing 17, and permits the contact 24 to be moved under the contact 22, into engagement with the contact 11 upon the casing 1.

In the modification of Figs. 4 and 5, the depressible contact consists of a V-shaped spring member 27, which is fastened to the casing by means of the rivets 21 which hold the housing in place. The sliding contact consists of a strip of metal 28, which proj cuts through the housing and is formed on the outside thereof into a thumb piece 29. In this modification it will be seen that the strip 28 may be moved forwardly between the legs of the spring member 27 into engagement with the contact 11 mounted upon the casing 1.

In the modification shown in Figs. 6 and 7, the sliding contact is similar to that shown in Figs. 4 and 5, but the depressible contact consists of a fiat spring member 30 connected to the inside of the upper wall of the housing, and is provided with an actuating button 81. The housing 17 is so proportioned in this modification that an ample clearance is allowed betweenthe sliding. contact and the depressible contact; but, if desired the sliding contact may make contact both with the depressible contact and with the contact 11 upon the casing 1.

It will be understood that the description contained in this specification and the drawings referred to therein do not illustrate and describe the only forms which my invention may take, but are intended to be illustrative of its principle only and to show operative forms in which it may be'embodied. It will also be understood that the various sliding and depressible contacts illustrated in the drawings may be combined in any desired way and that any given sliding contact need not be used with any specific depressible contact and vice versa.

What I claim is:

Contact mechanism for battery hand lamps comprising in combination conductors connectedto opposed poles of the battery, a pair of spaced contacts at each of the adjacent ends of the conductors, a housing covering said contacts and spaced therefrom, a depressible switch within said housing and having one end engaging a contact of one conductor and the other end overlying and spaced from a contact of the other conductor, and a slidable switch mounted on the housing and adapted to be moved under the depressible switch and into engagement with each of the remaining contacts of said conductors.

In testimony whereof I have signed my name to this specification this twelfth day of December, 1917.

FRANCIS M. ROSENFELD. 

